Article View: sci.physics
Article #7549Re: Color questions: color systems, "black bodies", EGB palette
From: Rahul Dhesi
Date: Wed, 27 May 1987 15:58
Date: Wed, 27 May 1987 15:58
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In article <1937@druhi.ATT.COM> neal@druhi.ATT.COM (Neal D. McBurnett) writes:
>5) As I understand it, the color palatte of the IBM CGA standard is really
> limited to 8 colors with 2 intensities of each. On the other hand,
> the EGA standard allows for a "64 color palatte". Which 64 colors?
> 2 bits per primary?
This problem of terminology comes up again and again. People, the human eye
needs only three distinct hues for full effect. This business of 8 colors, or
64 colors, or 4096 colors, is advertising hype. Your typical printer will
tell you he or she uses only three colors, with a little black thrown in. The
rest is all a question of INTENSITY.
Remember, THREE colors, and a large number (or 16, or 64, or 4096) of
INTENSITIES.
--
Rahul Dhesi UUCP: {ihnp4,seismo}!{iuvax,pur-ee}!bsu-cs!dhesi
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!husc6!think!ames!ptsfa!ihnp4!inuxc!iuvax!bsu-cs!dhesi From: dhesi@bsu-cs.UUCP (Rahul Dhesi) Newsgroups: sci.physics,comp.graphics,comp.sys.ibm.pc Subject: Re: Color questions: color systems, "black bodies", EGB palette Message-ID: <725@bsu-cs.UUCP> Date: Wed, 27-May-87 11:58:52 EDT Article-I.D.: bsu-cs.725 Posted: Wed May 27 11:58:52 1987 Date-Received: Sat, 30-May-87 06:31:29 EDT References: <1937@druhi.ATT.COM> Reply-To: dhesi@bsu-cs.UUCP (Rahul Dhesi) Distribution: comp Organization: CS Dept, Ball St U, Muncie, Indiana Lines: 16 Summary: Claims of computer graphics displays with more than 3 colors are advertising hype